SOLUTION: What is the area of an ellipse with the major axis 20 m and the minor axis 10 m? Round answer to the nearest whole number

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Question 175477: What is the area of an ellipse with the major axis 20 m and the minor axis 10 m?
Round answer to the nearest whole number
Answer by Alan3354(69443) About Me  (Show Source):
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What is the area of an ellipse with the major axis 20 m and the minor axis 10 m?
Round answer to the nearest whole number
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The area of an ellipse with axea a and b is pi*a*b/4. Note that a circle is a special case of an ellipse where the two axes are equal and whose area is pi*a*a, or pi*r*r = pi*r^2 (or pi*d^2/4). The axes correspond to the diameter of the circle, not the radius.
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http://www.math.hmc.edu/funfacts/ffiles/10006.3.shtml
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For this one, the area = pi*a*b/4 = pi*10*20/4
A = 50*pi
A =~ 157 square meters (assuming the m is meters)